Janice Dickinson: I won't keep quiet anymore!

The 59-year-old supermodel appeared on Entertainment Tonight on Tuesday evening to voice the claims. She alleged that she met with Bill in 1982 to discuss her appearing on The Cosby Show and he plied her with alcohol and pills before attacking her.

She is the 15th woman to accuse the 77-year-old star in this way, and his lawyer lashed out at the allegations, calling them a lie. Janice has now hit back.

“It is not a lie,” she told hosts Nancy O'Dell and Kevin Frazier last night.

“It is my right as a woman. I have to speak up and you have to be able to go in and just be brave and do it for all the women that can't come forward."

Janice previously said she wrote about the alleged assault in her autobiography No Lifeguard on Duty: The Accidental Life of the World's First Supermodel, which was released in 2002, but was pressured to take that part out by the actor's lawyer.

She was emotional during yesterday’s interview and cried when it finished.

“The loss of innocence that I suffered and that these women suffered is why I'm sitting here today. And I don't care about what Cosby or networks or anybody says, you will hear me,” she said.

Bill has cancelled a number of talk show appearances over the last two weeks and has refused to comment on the allegations he is facing. Yesterday, his lawyer Marty Singer released a statement refuting that any of the accusations are true.

"Janice Dickinson’s story accusing Bill Cosby of rape is a lie. There is a glaring contradiction between what she is claiming now for the first time and what she wrote in her own book and what she told the media back in 2002,” it read. “Ms. Dickinson did an interview with the New York Observer in September 2002 entitled Interview With a Vamp completely contradicting her new story about Mr. Cosby. That interview a dozen years ago said 'she didn't want to go to bed with him and he blew her off.' Her publisher HarperCollins can confirm that no attorney representing Mr. Cosby tried to kill the alleged rape story (since there was no such story) or tried to prevent her from saying whatever she wanted about Bill Cosby in her book. The only story she gave 12 years ago to the media and in her autobiography was that she refused to sleep with Mr. Cosby and he blew her off. Documentary proof and Ms. Dickinson's own words show that her new story about something she now claims happened back in 1982 is a fabricated lie."

Raven-Symoné played Bill’s character’s daughter on The Cosby Show and has become the first of his co-stars to speak out. She slammed rumours that anything untoward happened to her on set.

“I was NOT taking advantage of by Mr. Cosby when I was on the Cosby Show!” she captioned a shot of herself as a young girl on Instagram. “I was practically a baby on that show and this is truly a disgusting rumor that I want no part of! Everyone on that show treated me with nothing but kindness. Now keep me out of this (sic)!”